ifnex/04_Laravel/app/Http/Controllers/Api/PricingController.php

<?php

namespace App\Http\Controllers\Api;

use App\Services\PriceCalculatorService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Validation\ValidationException;

class PricingController
{
    public function __construct(protected PriceCalculatorService $calculator) {}

    public function calculate(Request $request): JsonResponse
    {
        try {
            $validated = $request->validate([
                'direction' => ['required', 'string', 'in:Outbound,Inbound'],
                'type' => ['required', 'string', 'in:DOC_NORMAL,DOC_ECONOMY,PARCEL'],
                'country_iso' => ['required', 'string', 'size:2'],
                'weight' => ['required', 'numeric', 'min:0'],
                'volumetric_weight' => ['required', 'numeric', 'min:0'],
                'extra_service' => ['nullable', 'numeric', 'min:0'],
                'packing_cost' => ['nullable', 'numeric', 'min:0'],
                'domestic_pickup' => ['nullable', 'numeric', 'min:0'],
                'domestic_delivery' => ['nullable', 'numeric', 'min:0'],
                'warehousing_cost' => ['nullable', 'numeric', 'min:0'],
                'discount' => ['nullable', 'numeric', 'min:0'],
            ]);
        } catch (ValidationException $e) {
            return response()->json([
                'message' => 'Validation failed',
                'errors' => $e->errors(),
            ], 422);
        }

        $result = $this->calculator->calculate($validated);

        return response()->json($result);
    }
}